Type-writing machine



(Modem 4Sheets-Sheet 1.

L. H. HOEFER.

TYPE WRITING MAGHINE.

No. 316,267. Patented Apr. 21, 1885.

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L. H. HOEFER.

TYPE WRITING MACHINE.

N0. 316,267. Patented Apr. 21, 1885.

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(ModeL) 4Sheets-Sheet 3 L. H. HOEFER.

TYPE WRITING MACHINE.

Patented Apr. 21, 1885.

If (ModeL) 4 Sheets-Sheet 4 L; H. HOEFER. TYPE WRITING MACHINE;

No. 315,267.. Patented Apr. 21, 1885.

N. PETERS, Fholuiflhngnphcr, Washmglan. n.0,

, fixes, and suffixes.

, of those words and the next following word.

also letters used as prefixes or suffixessuch UNITED STATES LElVIS H. HOEFER,

OF DAYTON, OHIO.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 316,267, dated April 21, 1885.

Application filed October 4, 1883.

To all whom it may concern:

Be it known that I, LEWIS H. HOEFER. a citizen of the United States, of Dayton, in the 1 county of Montgomery and State of Ohio, 1 have invented certain new and useful Improvements in Type-Writers, of which the following is a specification.

My invention relates to an improvement in type-writing machines.

The object of my invention is to provide an attachment to an ordinary spacing frame which will allow of the use of a word-type, operated by a single finger-key, whereby a single word may be printed by one movement of the fingersuch as the words the, and

as tion, cion, or other similar words, pre- My object is. further, to so arrange the spacing-pawls, which work in combination with the rack-bar, that word-types may be used as suffixes or prefixes to other words without any space between the prefixes and suffixes and the adjacent letter of the word, and so as to allow the word types to be used as single words operatedby a single key, and at the same time to make a proper space between any The herein-described arrangement of the parts constituting my improvement adds greatly to the speed of writing by type-writer, which is the principal object of my invention, all of which will be more fully set forth in the description of the accompanying drawings.

Figure 1 represents a rear elevation of my improvement; Fig. 2, a front elevation with a part of the frame-work broken off; Fig. 3, atop plan View; Fig. 4, a plan view of part of the lever mechanism for operating the oscillating frame B; Fig. 5, an elevation of the spacing-pawls, showing them in their differ ent working positions. Fig. 6 is a side elevation of the spacing mechanism in the position for making sets of letters. Fig. 7 is a similar elevation when the attachment is thrown back out of use between the periods of making words by the word-type. Fig. 8 is a plan view of the spacing-stops and frame. Fig. 9 shows a modified form of using the spring to control the side 6. Fig. 10 is a detail view of the pawl and stops. Fig. 11 is another detail view representing the pawl in its normal (Model) position. Fig. 12 is a detail view of the bellcrank lever and its trigger devices.

The drawings show my invention mounted upon the ordinary spacingframe ofthe typewriter now in general use.

A A indicate this frame-work, on which the parts are mounted; a, the tilting beam or rail, which is rigidly secured to arms a, which are in turn rigidly attached to the rocking shaft A, which shaft is journaled'on the arms a which project rearwardly from the front of the frame A.

B indicates a standard rigidly secured to rock-shaft A, which is provided with an arm, I), as shown in Fig. 7, slotted at the top, so as to' form a support for a pivot-shaft, b, which is secured to the forks of standards B b.

0 indicates a pawl which journals upon the pivot b, and the upper end of which is beveled off to form a knife-edge, as shown in Fig.

which is represented by parts a a B b, pawl D being rigidly secured to the standard B, and

oscillating forward and back therewith upon centers A. Pawl O is, however, provided with additional lateral movement, so as to allow of the spacing requisite for printing a wordtype by one key-movement, as will be hereinafter explained.

Rail a is operated by meansof the beam or rail 0, which is suspended upon the rail a. by means of wire hook-rods c,which are hung in notches of the rail a. Beam 0 and the, rail or are operated or depressed by means of fingerkey levers c", which are depressed upon the transverse beam 0, which rocks the frame B and moves it forward from the position shown in Fig. 7 to the position shown in Fig. 6, moving pawlG out of engagement with the rack-,

to arrest the movement of the paper-frame after the space is made. The parts c c are also of ordinary construction, except the depressing-lever c,which is slotted or gained at its forward end, so as to clear bar d.

E indicates a metallic plate rigidly secured to the top of standard B by a screw, Z.

e indicates a back stop for pawl C. It is held against pawl 0 so the latter will normally be in theplane with pawl D by means of a retractile spring, E, the forward arm of which bears against a lug, e ,on the back stop. In Fig. 9 is shown a modified form of using the spring to control the slide or back stop, 6. The reference-numeral 10 in this figure represents a downwardly projecting lug on slide e,working in slot 11 madein the plate E. 12 represents apivoted arm, the point of which bears against the lug 10. 13 represents a retractile spring for drawing the arm 12 and slide 6 back into position.

When the rack-barofthe paper-carriageisreleased from contact with the pawl D, the papercarriage is moved to the left from it by a spring or weight in the ordinary manner. lVhen the teeth of the rack-bar are released from contact with pawl D by the backward movement of the rocking frame B, one of the teeth will engage with the pawl C, which, being pivot-ed, moves under the strain of the carriage weight or spring one space to the left into the position shown by 1, Fig. 5, carrying stop 6 backward and forcing the arm of the spring E backward until the movement is arrested by the end of stop 6 striking against stop 01 when the pawl G will be one space to the left of its normal position, as shown by dotted lines in Fig. 5, and the pawl 0, being in contact with one of the teeth of the papercarriage, it, with the stop 6 and d holds the carriage in position for the impression on the paper of a letter or a word-type. Thus the movement of the carriage one space is produced by the movement of paw'l C on its pivot one space to the left, and said pawl O is arrested in this latter position by the stops 6 and d.

In order to make the longer spaces by a single movement sufficient to make four letters, or three letters and a space, I provide the following instrumentalities for operating the pawls O D and actuating the oscillating frame B, upon which they are mounted:

F F indicate supplemental bent arms secured to a cross-bar, F, which is journaled upon the rock-shaft or center A. These arms project forward and support rail d, and are held a slight distance above arms a by means of a spring, f, which is secured to standard I, the forward end of which spring supports the arms F by pressing upward against a crossbar, 1', which is rigidly secured to the arms F to hold them normally above the lever arms a a.

G G denote links, one of which is pivoted to the cross-bar 'i of lever-arms F, and the other, G, pivoted to a bell-crank lever, H.

G indicates a right'and-left-hand screwrod engaging with threads of links G G, so as toadjust the length of the compound link formed by the parts G G.

I indicates supporting-arms, which are rigidly secured to part I, which is in turn rigidly attached or secured to standard B, so as to rock or oscillate upon the pivots A.

Bell-crank lever H is provided with a crossshaft, H, which is pivoted upon center screws, h, which are tapped through arms I.

Upon. the bell-crank lever H are pivoted two spring-triggers, J J,j j indicating the pivots, and h h retractile springs for holding these triggers J J in a vertical position.

L L indicate catches formed on the triggers J J for operating the spacing stops or catches M N. These catches M N are pivoted upon arm 0, by means of a pivot, O, which arm projects outwardly from the standard B. Catch M is notched at m, so as to act as a stop for pawl O in its normal position, and holds pawl O in a plane parallel with pawl D, catch M being held in its normal positions by retractile spring K. in indicates an arm projecting forward from the pivoted catch M and passing under catch L of trigger J.

Catch-lever N is likewise pivoted to arm 0,

and held in its normal position by retractile I springs Z. It is also provided with the outwardly-projecting lever-arm N,whicl1 is held under the catch L of trigger J, and operated by it.

0 indicates an adjusting-screw for regulating the backward movement of the pawl 0, against which it rests when the stops M N are thrown downwardout of action. The stops M and N are depressed and thrown out of position as stops for the pawl G by means of the catches L L upon the triggers J J, which catches are brought down upon the arms m N by means of bell-crank lever H, links G G G, tilting-arms F, and rail (1. The rail dis operated by a lever-key, d which depresses rail (2, suspended upon rail d. The key-lever d is slotted out, so as not to come in contact with the rail 0, but rest normally on the rail 01, so that as lever d is depressed by a finger-key of any known form of construction, rail d is depressed, and with it rail d, which is rigidly secured to the arms F F,which move upon the center A, conveying motion through .link G to bell-crank lever H, bringing th catches of triggers J J down upon the arms m N and depressing the catches M N, draw ing them downward, so that pawl 0 moves laterally over the catches M N, and rests against the stop 0 upon arm 0. The pawl will then occupy the position shown by 4, Fig. 5,

The depression of the rail-arms F brings it down upon the arms a during the first part of its motion, thereby rocking the standard B upon its centers A, and brings pawls O D forward into the vertical plane, as shown in Fig. 6.

In order to allow the paper-carriage to move over the distance corresponding to three let ters and a space, or four letters, as the case may be, I provide the following instrumentali ties to throw out of use the catch N, which, when held in normal position, allows pawl G to occupy the position as shown at 3, Fig. 5. The catch N in its normal position serves as a stop for the pawl O, which occupies the position 3, as shown in Fig. 5. This is accomplished by moving the trigger J with its catch L inwardly, so as to pass arm N.

1? indicates an arm pivoted upon the frame I A, as shown in Fig. 2; P, a spring for holding it in its normal position, as there shown.

\Vhen it is desired to throw the trigger J and catch L inward, so as not to depress arm N of stop N, I provide an independent keylever, Q, which operates lever-arm Q, rigidly secured to the pivoted arm P. When the key-lever of the rod Q is depressed, arm I? is forced inward and strikes the trigger J, carrying it inward sufficiently to allow the catch L to pass downward inside of the arm N, so that the catch N is not depressed but acts as a stop for the pawl-lever G and limits its movement to the point 3, as shown in Fig. 5. The various positions which the pawl O occupies are represented by 1, 2, 3, 4, 1 showing the catch advanced to the left of the plane of the pawl D for making a single space, 2 showing it in its normal position in plane with pawl D, 3 showing it in position for makinga word-type of three letters or two letters and a space, and 4 showing pawl C in its extreme lateral position, with the stops M N depressed for making the longer spaces.

Thus it will be seen that the stop M in its normal position acts as a stop to limit the lateral movement of pawl G and hold it in plane with pawl D. Stop N serves as a stop to limit the movement of the pawl Ofor three spaces, and stop 0 serves as an extreme limit for the movement of pawl O the longer setof spaces.

The word-types, prefixes, or suffixes are arranged upon an arm the same as a single letter, but in impressing either three or four letters the longer spaces are required. Hence, to provide these longer spaces-say the three letters and a space or four letters-bell-crank lever H, with the catches L L in their normal position, is operated by the depression of rail d, when the stops M and N will be drawn down out of position, so that the pawl G will move to the extreme limit against stop 0, as shown in Fig.. 10; but when a spacesay of three letters is to be made, key-lever Qis depressed in conjunction with the rail (1, which action depresses the stop M only, leaving the stop N in its normal position, because the catch L is by the action of arm P thrown inward so as to pass the arm N.

I have shown the upright B I as made of separate pieces and rigidly secured together. It is obvious that those parts, together with arm 0, arms I, and plate E, couldvall be cast in one piece.

It will also be seen that either one of the stops M or N could be used alone and operated by a single trigger-catch to form a single long space. The object of using the two combined is to vary the length of the long spaces.

I do not desire to limit myself to the pecuby the rocking movement of the main standard I have not shown the paper-carriage and drum on which the paper is rolled, as-my attachment may be used upon type-writers now in general use. i

R indicates a bell of ordinary construction; S, the drum on which the spring for pulling the paper-carriage is mounted.

The stops M and N and the pivoted pawl G or its equivalent could be used with the caligraph type of machine instead of the Remington'type, changing the arrangement and location of the parts to correspond with the operative mechanism of the caligraph.

I do not wish to limit the application of my invention to the Remington type of machine alone, as the same may be readily adapted to be used in connection with the caligraph type.

What I claim is 1. In a type-writer, the combination of stationary pawl D, pivoted movable pawl 0, plate E, for forming a letter-space by thelateral movement of pawl O, the sliding stop 0, secured to plate E and bearing against the side of the movable pawl, and provided with lug 0 the stop, 61, to check the movement of said stop, spring E, connected to plate E, lug e of stop 0, and movable stop M, all mounted on the rocking standard B for operation, substantially as described.

2. In a type-writer, the combination of the rocking standard B, the pawl D, rigidly secured thereto, the pawl 0, connected to said standard and having a lateral movement, rail 0, connected with said standard to rock the same, the pivoted arms F, the rail d, connecting said arms together at their forward ends, and a rail, d, suspended from rail d, substantially as described.

3. The combination, in a type-writer, of the rocking standard B, the pawl D, rigidly mounted thereon, the movable pawl 0, connected with the rocking standard and capable of having a lateral movement imparted to it, the rail 0, connected with the arm a of the rocking standard, the pivoted arms F, the rail (1, connecting the arms F at their forward ends, the rail d, suspended upon the rail d, and the pivoted bell-crank lever H, connected with the arms F, said bell-crank lever H carrying the triggers J J for operating the stops M N,

out of engagement therewith so as not to move the same, substantially as described.

6. In a type-writer, the stationary pawl D and pivoted pawl O, in combination with the movable stop M, a trigger to engage with'a part of said stop, all mounted upon the rocking standard B, and a lever to operate said trigger to move the stop from said pivoted pawl, substantially as described.

7 In combination with the stationary pawl D and the pivoted pawl O, the stops M and N, springs h h arms M N, and triggers J J, mounted on bell-crank lever H, for throwing them out of position to allow of the longer lateral movement of the pivoted pawl ()fsubstantially as described.

8. In a type-writing machine having stationary pawl D and a pivoted pawl, O, the pivoted stop N, trigger J, and pivoted leverarm P, with pivoted link-connection adapted to be operated so as to throw trigger J with its catch out of contact with the arm of stop N, whereby the latter is held in its normal position to act as a stop for the pivoted pawl O, substantially as described.

9. In a type-writer, the combination of the stationary pawl D, the pivoted pawl C, an oscillating frame upon which the pivoted pawl is mounted, movable stops M N, triggers to engage with some part of said stops, a lever to operate said triggers to move said stops, and a lever to move one of said triggers from engagement with its stop, substantially as described.

In testimony whereof I have hereunto set my hand. 7

LEWIS H. HOEFER. Witnesses:

JNo. E. JoNns, EDWARD BOYD. 

